Which one to buy Qmobile Noir A950, A900, A700, A600, A20 & A500?

Which one to buy Qmobile Noir A950, A900, A700, A600, A20 & A500?

Specification	Noir A950	Noir A900	Noir A700	Noir A600	Noir A20	Noir A500
Processor	1.2GHz Quad-core	1.2GHz Quad-core	1.2GHz Quad-core	1.2GHz Quad-core	1.2GHz Quad-core	1.2GHz Quad-core
Ram/Rom	1GB/4GB	1GB/4GB	1GB/4GB	1GB/4GB	1GB/4GB	512MB/4GB
Display	4.5”	4.7”	5.3”	5.0”	4.5”	4.5”
Camera	8mp	8mp	8mp	8mp	8mp	5mp
Price in Rs/=	26500	22500	22900	21000	19000	16000

• Noir A950 the most expensive phone in Quad series because it has a Super AMOLED LCD Plus touch screen nothing more.

Qmobile mobile Quad series include six smartphones with almost similar specification except with the Noir A500, other phones Noir A950, A900, A700, A600, A20 all have a Quad-core processor with 1GB ram.

*Note: All smartphones have front camera, wifi, Bluetooth and dual sims support.( 3G is excluded from comparison because there is no 3G service in Pakistan.

So come to the main point people are asking which one to buy from the Qmobile Quad series (above). As you can see in the comparison that all phones have a quad-core processor with 1GB ram except Noir A500 which has a 512 Mb Ram, the only major difference is between the display size and prices. 

Keep Noir A500 a side, now come towards the performance. As specifications are same in all  so benchmarks would also be similar but the are little variation because of different display sizes.